Self drilling injection anchor is for stabilization of excavations and consists of the insertion of steel bars by mechanical procedures into the ground. The use of the drilling shaft as grouting conduit for filling the borehole from the bottom-up guarantees a positive and complete embedment of the tension elements, thus eliminating the possibility of voids. It also avoids additional grouting tubes, air vents and post grouting. In recent years, with the continuous development of social economy and science and technology level, self drilling injection anchor technology in our country has gained great progress and development of duplication and amounts of support on the degree and scope of continuously introduce new achievements.
Sinorock hollow self drilling anchor is designed for use in various applications, including tunnel repair and refurbishment and also slope and cliff face reinforcement. It provides the optimal solution for nailing, bolting, micro piling and as ground anchors for use in difficult ground and rock conditions. Sinorock hollow self drilling anchor products comprises of high quality fittings matched to rope threaded seamless steel tube which is threaded to ISO 2008. The Sinorock products can be proof tested immediately, as there is no grout to cure.